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Diff of /sml/trunk/HISTORY

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revision 642, Thu May 11 07:30:29 2000 UTC revision 645, Mon May 15 07:17:30 2000 UTC
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13  Description:  Description:
14  ----------------------------------------------------------------------  ----------------------------------------------------------------------
15  Name: Matthias Blume  Name: Matthias Blume
16    Date: 2000/05/15 16:20:00 JST
17    Tag: blume-20000515-lightrebuild
18    Description:
19    
20    1. I added an alternative to "-rebuild" to "makeml".  The difference is
21       that prior to calling CMB.make' the CM-variable "LIGHT" will be
22       defined.  In effect, the command will not build any cross-compiler
23       backends and therefore finish more quickly.
24    
25       The "fixpt" script also takes a "-light" switch to be able to use
26       this new facility while compiling for a fixpoint.
27    
28    2. I replaced all mentions of anchored paths in group owner specifications
29       with simple relative paths (usually starting with "..").
30       The rationale is that a library's internal workings should not be
31       compromised by the lack of some anchor.  (An anchor is necessary
32       for someone who wants to refer to the library by an anchored path,
33       but it should not be necessary to build the same library in the first
34       place.)
35    
36    3. I changed the way CM's tool mechanism determines the shell command
37       string used for things like ml-yacc etc. so that it does not break
38       when CM.Control.implicit_anchors is turned off.
39    
40    ----------------------------------------------------------------------
41    Name: Matthias Blume
42    Date: 2000/05/12 18:20:00 JST
43    Tag: blume-20000512-ml-build
44    Description:
45    
46    Fixed a bug in config/_ml-build that prevented ml-yacc and ml-lex from
47    getting installed properly (by config/install.sh).
48    
49    ----------------------------------------------------------------------
50    Name: Matthias Blume
51    Date: 2000/05/12 17:30:00 JST
52    Tag: blume-20000512-anchors
53    Description:
54    
55    !!! NEW BOOT FILES !!!
56    
57    This change is in preparation of fading out support for "implicitly
58    anchored path names".  I went through all sources and used the
59    explicit (and relatively new) $-notation.  See system/README and the
60    CM manual for more info on this.
61    
62    I also modified the anchoring scheme for some things such as "smlnj",
63    "MLRISC", "cm", etc. to take advantage of the fact that explicit
64    anchors are more expressive: anchor name and first arc do not have to
65    coincide.  This entails the following user-visible change:
66    
67    You have to write $smlnj/foo/bar instead of smlnj/foo/bar.  In
68    particular, when you fire up sml with a command-line argument, say,
69    e.g.:
70    
71       sml '$smlnj/cmb.cm'
72    
73    At the ML toplevel prompt:
74    
75       CM.autoload "$smlnj/cmb.cm";
76    
77    There is also a new controller in CM.Control that can be used to turn
78    off all remaining support for implicit anchors by saying:
79    
80        CM.autoload "$smlnj/
81        #set CM.Control.implicit_anchors false;
82    
83    This causes CM to reject implicitly anchored paths.  This is (for the
84    time being) less permissive than the "final" version where there will
85    be no more such implicit anchors and relative paths will be just that:
86    relative.
87    
88    The next step (version after next version?) will be to make the
89    default for CM.Control.implicit_anchors false.  After the dust has
90    settled, I can then produce the "final" version of this...
91    
92    Note: Since bootstrapping is a bit tricky, I provided new boot files.
93    
94    ----------------------------------------------------------------------
95    Name: Matthias Blume
96  Date: 2000/05/11 16:30:00 JST  Date: 2000/05/11 16:30:00 JST
97  Tag: blume-20000511-sources  Tag: blume-20000511-sources
98  Description:  Description:

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